Suction gas-generator.



. lace. The hollow plate may be stationary,

'tated for the purpose of facilitating the dis- ,is working to its full capacity a maximum vcording to my invention l take advantage JOHN FIELDING, OF GLOUCESTER; ENGLAND.

SCTION GAS-GENERATOR.

Specification of Letters Patent.

Patented Jan. 21, 1908.

Application filed July l0; 1906. Serial No. 325.483-

To all whom it may concern.'

Be it known that l, JOHN FIELDING, a subjectof the King otGreat Britain, residing at Gloucester, England, engineer, have inventedV new and useful Improvements in Suction Gas-Generators.

The invention relates to an 'improved means for generating and automatically regulating the amount of steam which it is found advantageous to employ in the working gas generators which work bysuction.

Accordin to my invention air together with a regu ated amount of Water is caused to pass radially through a heated hollow circular plate upon which the incandescent fuel rests, in such a manner that the air, together with the steam, passes'into the fuel regularly and uniformly all around the base of the fire. The air, together with water in a4 sprayed condition, enters through a eentral passage from which they spread radially in a thin stream which is interrupted and diverted by a number of heated bars lor iins presenting a large amount oi heating suror it may be so arranged that it can be `rochargc of the ash and clinker.

Automatic regulation of the quantity of water for conversion into steam is effected in the following manner. When the engine amount of water may be used in the producer, but at light or no load it is preferable to proportionately diminish the supply of water or`cut it ofi' altogether.

ln this class ofl gas generator ythesupply of air necessary' for combustion of the fuel enters by atmospheric pressure whenever the engine draws away a charge of gas, the quantity ol air being therefore in proportion to the-power exerted, because no air enters the producer when by the action of the engine governor the gas inlet valve remains closed during the engine/s charging stroke. Ac-

of this intcrmittency of the air supply for the pur ose of regulating the sup ply of water in t e following manner. l provide a branch ieee which admits the air to the generator, liaving four branches, two of these are preferably horizontal, viz., the branch admitting air, and one immediately' opposite leading to the steam generating portion of the producer, a vertical inverted water jet is placed about centrally of the two air branches, with suitable means for regulating the quantity of water, which may liow in a regular stream or series of drops. Beneath the jet is arranged an outlet pipe leading preferably to a Water seal and the water falling from the et passes away down this outlet' pipe except at such times as the engine is taking its charge of gas. At these times the falling jet is, delected laterally by the current oi air enterin thegenerator, causing the'water so deiiecte to be carriedinto the generator.

Referring to the drawings, Figure 'l shows a vertical section of the lower part of a. gas generator showing my improved form of steam generating and air heating grate. Fig.

'2 a cross section and Fig. 8 in sectional eleyvation the improved apparatus for regulating the supply of water in enlarged scale. A. is the fire chamber' with lining of firebrick contained in a metal casin C.'

D. is a base piece fitted wi-5i the usual cleaning out and. poking doors.

E. is the lower part of the double fire gratev which in this case is made rotative, for this -purpose it is pivoted upon acentral air inlet pipe F. and 1t is preferably supported u' on antifriction balls G., E. is provided, W en made rotative with suitable means such as toothed rim E1 with pinionl-I., shaft and .handle J. l

' K. is the upper part of the double fire grate having formedn on its 'lower surface fins or ribs K1, these ri )s become highly heated in working, so that the Water spray which enters suspended in the entering air becomes converted mto steam.

K2 are ribs formed upon the upper 4surface of K. for the purpose of causing the lower part of the lire to'rotate with the plate, thereby producing some disturbanceof the heated fuel which is'benefioial at times.

L. is the air inlet pipe, M. thelwater supply p1pe,.N. the regulating valve-34). the Water pipe leading to is the pip-e provided for the escape of sur lus water. y

he construction of my improved apparatus for regulating the suppl of water is shown in Figs. '1 t 8. is t e water jet. vln Fig. 1 the Water is indicated as dropping from the jet Q in a vertical line anc escaping away through the pipe P., there being at the time not' suilicient entry of airby theA ,i eL. to disturb it, but in Fig. 3 it is assumeoltliat a full current of air is entering causigg the water to be carried towards the genfI atoi-,

where it mixes with the'. air smdis converted into steam by Contact with the heated surl feces of the double grate K.

site to the water inlet, ay hollow fire grate on l0 the mouth of the en inlet pipe, ribs between the plates of tlle'grtte, end means for' faciliteting the discharge ol'` tlle ash and elinkei, es and for the purpose spooi'lied.

2. In e suction ges generator the combinetion of' en air inlet pipe, a Water inlet in the '1t uppel1 Wall of said pipe, e Water outlet opposite to tbe Water inl-et, e, hollow ire grate pi-y otecl upon the mouth of the air inlet pipe, ribs between the plates of the grate, and ineens for: rotating theA grate, as and for the purpose specified.

JOHN FIELDING.

l/Vitne'sses CECIL GREENHILL, PETER GEORGE SAVAGE. 

